. >> around the world, they have been donning their fake beards and harnessing their reindeer. trading reindeer for diving gear. you can make sure it is gifts were waterproof. >> "aqua claus" is in charge of the aquarium. we will be back after this short break. >> the eurozone debt crisis and global economic slowdown have sent gold prices to record highs. these days, it's hard to know which is the safest investment. >> people are putting their trust and cash and some are turning to a certain gemstone. >> could diamonds be an investor's best friend? >> busy during the holiday season. rings and jewelry have been a popular president. they can cost many thousands of euro and the value depends on the size and cut as well as purity and color. >> i will show you two bigger stones so you can see the color variation more clear. >> diamonds are becoming ever more expensive. this is driving up the price. >> there is the fact that it is set to decline. it is roughly the same as oil. we will only be able to reduce oil for a certain number of years. in any case, the number is declining. >> a